Module RegisterScmProvider 

Cocoon → register_scm_provider notification.

Three side effects, all best-effort and independent:

1. VineHost::RegisterScmInRegistry records the handle in the embedder’s ProviderRegistration table so future handle-keyed dispatches resolve.
2. VineHost::CreateSourceControl mutates the embedder’s SCM marker state and emits SkyEvent::SCMProviderAdded - the canonical path the SCM view uses.
3. Host.EmitToRenderer("sky://scm/register", ...) covers renderer code that listens for the legacy simpler event shape.

Handle disambiguation: Cocoon’s ScmNamespace.ts allocates a process-local sequential handle and includes it on the wire. Subsequent register_scm_resource_group, update_scm_group, and unregister_scm_provider notifications reference the SAME sequential handle. Falling back to a DJB hash of ScmId is only allowed when Cocoon omits the field (legacy callers).

Functions

BuildUrlFromComponents 🔒

Rebuilds a full URL string from a VS Code UriComponents JSON object ({ scheme, authority, path, query, fragment }). Returns None when the scheme field is absent or empty.

RegisterScmProvider